Two plants, holy thistle (Silybum marianum) and Canada thistle (Cirsium arvense): flowering and fruiting stems. Coloured etching by C. Pierre, c. 1865, after P. Naudin.
Wellcome Collection

Two plants, holy thistle (Silybum marianum) and Canada thistle (Cirsium arvense): flowering and fruiting stems. Coloured etching by C. Pierre, c. 1865, after P. Naudin.

Philibert Naudin · 1865

CC0 — Public Domain
Wellcome Collection

Lettering: Chardon marie Chardon hémorrhoïdal P. Naudin pinxt. C. Pierre sc pl.

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